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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1532172.pdf | 266 kB | Shaun Ewing | Apr 07, 1925 00:00 |
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US-1532172-A // Means for receiving weak signal currents // Carson John R. // American Telephone & Telegraph | |||
| Version 1 (current) | 266 kB | Shaun Ewing | Apr 07, 1925 00:00 | US-1532172-A // Means for receiving weak signal currents // Carson John R. // American Telephone & Telegraph | ||||
| PDF File 1532169.pdf | 581 kB | Shaun Ewing | Apr 07, 1925 00:00 |
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US-1532169-A // Method of and means for measuring transmission // Best Fred H. // American Telephone & Telegraph | |||
| Version 1 (current) | 581 kB | Shaun Ewing | Apr 07, 1925 00:00 | US-1532169-A // Method of and means for measuring transmission // Best Fred H. // American Telephone & Telegraph | ||||
| PDF File 1531360.pdf | 1.44 MB | Shaun Ewing | Mar 31, 1925 00:00 |
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US-1531360-A // Telephone system // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.44 MB | Shaun Ewing | Mar 31, 1925 00:00 | US-1531360-A // Telephone system // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1531347.pdf | 211 kB | Shaun Ewing | Mar 31, 1925 00:00 |
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US-1531347-A // Relay // Rhodes William A. // American Telephone & Telegraph | |||
| Version 1 (current) | 211 kB | Shaun Ewing | Mar 31, 1925 00:00 | US-1531347-A // Relay // Rhodes William A. // American Telephone & Telegraph | ||||
| PDF File 1530548.pdf | 473 kB | Shaun Ewing | Mar 24, 1925 00:00 |
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US-1530548-A // Signaling // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 473 kB | Shaun Ewing | Mar 24, 1925 00:00 | US-1530548-A // Signaling // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1530537.pdf | 556 kB | Shaun Ewing | Mar 24, 1925 00:00 |
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US-1530537-A // Electrical transposition system // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 556 kB | Shaun Ewing | Mar 24, 1925 00:00 | US-1530537-A // Electrical transposition system // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1529801.pdf | 483 kB | Shaun Ewing | Mar 17, 1925 00:00 |
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US-1529801-A // Multiplex submarine cable // Martin William H. // American Telephone & Telegraph | |||
| Version 1 (current) | 483 kB | Shaun Ewing | Mar 17, 1925 00:00 | US-1529801-A // Multiplex submarine cable // Martin William H. // American Telephone & Telegraph | ||||
| PDF File 1529786.pdf | 309 kB | Shaun Ewing | Mar 17, 1925 00:00 |
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US-1529786-A // Secret communication system // Harper Alfred U. // American Telephone & Telegraph | |||
| Version 1 (current) | 309 kB | Shaun Ewing | Mar 17, 1925 00:00 | US-1529786-A // Secret communication system // Harper Alfred U. // American Telephone & Telegraph | ||||
| PDF File 1528982.pdf | 812 kB | Shaun Ewing | Mar 10, 1925 00:00 |
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US-1528982-A // Trunking system // Molina Edward C. // American Telephone & Telegraph | |||
| Version 1 (current) | 812 kB | Shaun Ewing | Mar 10, 1925 00:00 | US-1528982-A // Trunking system // Molina Edward C. // American Telephone & Telegraph | ||||
| PDF File 1528920.pdf | 677 kB | Shaun Ewing | Mar 10, 1925 00:00 |
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US-1528920-A // Trunking system // Foster Ronald M. // American Telephone & Telegraph | |||
| Version 1 (current) | 677 kB | Shaun Ewing | Mar 10, 1925 00:00 | US-1528920-A // Trunking system // Foster Ronald M. // American Telephone & Telegraph | ||||
| PDF File 1528907.pdf | 670 kB | Shaun Ewing | Mar 10, 1925 00:00 |
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US-1528907-A // Trunking system // Bascom Henry M. // American Telephone & Telegraph | |||
| Version 1 (current) | 670 kB | Shaun Ewing | Mar 10, 1925 00:00 | US-1528907-A // Trunking system // Bascom Henry M. // American Telephone & Telegraph | ||||
| PDF File 1528011.pdf | 593 kB | Shaun Ewing | Mar 03, 1925 00:00 |
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US-1528011-A // Radio signaling system // Demarest Charles S. ; Almquist Milton L. // American Telephone & Telegraph | |||
| Version 1 (current) | 593 kB | Shaun Ewing | Mar 03, 1925 00:00 | US-1528011-A // Radio signaling system // Demarest Charles S. ; Almquist Milton L. // American Telephone & Telegraph | ||||
| PDF File 1528010.pdf | 757 kB | Shaun Ewing | Mar 03, 1925 00:00 |
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US-1528010-A // Radio signaling system // Demarest Charles S. ; Almquist Milton L. // American Telephone & Telegraph | |||
| Version 1 (current) | 757 kB | Shaun Ewing | Mar 03, 1925 00:00 | US-1528010-A // Radio signaling system // Demarest Charles S. ; Almquist Milton L. // American Telephone & Telegraph | ||||
| PDF File 1527345.pdf | 566 kB | Shaun Ewing | Feb 24, 1925 00:00 |
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US-1527345-A // Electrical testing device // Birchall Benjamin H. // American Telephone & Telegraph | |||
| Version 1 (current) | 566 kB | Shaun Ewing | Feb 24, 1925 00:00 | US-1527345-A // Electrical testing device // Birchall Benjamin H. // American Telephone & Telegraph | ||||
| PDF File 1527318.pdf | 219 kB | Shaun Ewing | Feb 24, 1925 00:00 |
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US-1527318-A // Insulator // Lewis Edwin // American Telephone & Telegraph | |||
| Version 1 (current) | 219 kB | Shaun Ewing | Feb 24, 1925 00:00 | US-1527318-A // Insulator // Lewis Edwin // American Telephone & Telegraph | ||||
| PDF File 1526402.pdf | 291 kB | Shaun Ewing | Feb 17, 1925 00:00 |
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US-1526402-A // Loop circuits for telegraph repeaters // Watson Edward F. // American Telephone & Telegraph | |||
| Version 1 (current) | 291 kB | Shaun Ewing | Feb 17, 1925 00:00 | US-1526402-A // Loop circuits for telegraph repeaters // Watson Edward F. // American Telephone & Telegraph | ||||
| PDF File 1526348.pdf | 252 kB | Shaun Ewing | Feb 17, 1925 00:00 |
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US-1526348-A // Two-party signaling system // Jr. James M. Labaugh, // American Telephone & Telegraph | |||
| Version 1 (current) | 252 kB | Shaun Ewing | Feb 17, 1925 00:00 | US-1526348-A // Two-party signaling system // Jr. James M. Labaugh, // American Telephone & Telegraph | ||||
| PDF File 1525523.pdf | 992 kB | Shaun Ewing | Feb 10, 1925 00:00 |
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US-1525523-A // Printing telegraphy // Vernam Gilbert S. // American Telephone & Telegraph | |||
| Version 1 (current) | 992 kB | Shaun Ewing | Feb 10, 1925 00:00 | US-1525523-A // Printing telegraphy // Vernam Gilbert S. // American Telephone & Telegraph | ||||
| PDF File 1525522.pdf | 1.39 MB | Shaun Ewing | Feb 10, 1925 00:00 |
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US-1525522-A // Printing telegraph system // Vernam Gilbert Sanford // American Telephone & Telegraph | |||
| Version 1 (current) | 1.39 MB | Shaun Ewing | Feb 10, 1925 00:00 | US-1525522-A // Printing telegraph system // Vernam Gilbert Sanford // American Telephone & Telegraph | ||||
| PDF File 1525054.pdf | 1.67 MB | Shaun Ewing | Feb 03, 1925 00:00 |
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US-1525054-A // Power and amplifying equipment for distribution of intelligence over wires // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.67 MB | Shaun Ewing | Feb 03, 1925 00:00 | US-1525054-A // Power and amplifying equipment for distribution of intelligence over wires // Toomey John F. // American Telephone & Telegraph |
